We have developed a green and practical method for the Huisgen cycloaddition of water-insoluble sulfonyl azides with alkynes ‘on water’ at room temperature under catalysis of the inexpensive catalyst system CuX/PhSMe, and addition of the ligand (thioanisole) greatly inhibited cleavage of the N1N2 bond in the 5-cuprated N-sulfonyltriazole intermediates to amides and improved the yields of N-sulfonyltriazoles
我们已经开发了一种绿色实用的方法,用于在室温下在廉价的
催化剂体系CuX / PhSMe的催化下,与
水上的
炔烃进行
水不溶性磺酰
叠氮的Huisgen环加成反应,并且
配体(
硫代
苯甲醚)的加入大大抑制了Hs的裂解。所述N个1 ñ 2键在5 cuprated ñ的-sulfonyltriazole
中间体酰胺和改善的产率ñ -sulfonyltriazoles。